Method and Means for Increasing Echo-Ranging-Search Rate.
Patent, Filed 16 Aug 66, patented 14 Aug 90,
DEPARTMENT OF THE NAVY WASHINGTON DC
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This patent discloses a sonar system having a transmitting transducer adapted for being moved along a predetermined path, a transmitter for energizing and transmitting transducer, an omni-directional receiving transducer spatially disposed behind said transmitting transducer, a sidewardly and downwardly looking receiving transducer contiguously disposed with said omni-directional receiving transducer, a receiver connected to the output of said sidewardly and downwardly looking transducer, a series connected detector, differentiator, delay, and time base generator coupled to the output of said omni-directional transducer, and a readout connected to the outputs of the aforesaid receiver and time base generator. jhd
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